Evaporative coolers and means for mounting the same



April 23, 1957 A. D. GoETTL `ErAL 2,789,494

EvAPoRATIvE cooLERs AND MEANsjFoR MOUNTING THE SAME Filed oct. 1?. 1955 2 shams-shea 1 45 i r l se I V 4| 15:5 HG. 4 INVENTORS JOHN GOETTL Y. .am absefl Flag 52 ALaERT a. eos'r'n.

AGENT A. D. GoEr'n. Erm. 2,789,494

EvAPoRATIvE COOLERS AND MEANS FOR MOUNTING THE SAME y Filed om. 1v, 1955 l April 23, 1957 2 Sheets-Sheet 2 EVAPORATIVE CGLERS MEANSFOR n MOUNTINGJTHE SAME Adam D. fGoettl, Gust Goettl', lliert Goettl, and John Goettl, Phoenix, Ariz., assignors to International Metal Products Co., a' corporation of Arizona' Applicationl October 171'955, SeriaPNo. 540,968 14cloims. (CM2-#139) This invention` relatesto anlevaporative cooler and. means for mounting the same in windowl openings.

The installation of evaporative coolers in window openings posesmany mechanical considerations; particularly when a given unit must be installedI in ywindow openings having a great variety of. sash. and sillV structures constructed of`various materials.

In window openings having metal sash, vertical mullion structures are present,` and in window opening havingwooden sash.. cooler monntingproblems'are quite different. Heretofore it has been very difficult to adapt a single installation kit to a great variety off structures in window openings, whereby an evaporativecooler may be easily and readily installed in any one of them withoutma'lring major alterations insuch structures. Window openings havingsteel'sash, for example, contain vertical rnullion structures which have heretofore been cut away in order to provide a sufficient' opening to receive the cool air delivery ductI of an evaporative cooler. lin addition, it has heretofore been diii'cultfto vattain proper. in-

stallation of a. cooler in connection with both the wooden and` steel structures ina' window opening` without altering either the window structures or features of the evaporative cooler and/or its supporting. iXtures.

ALccordingly,` it is an object of the present invention to provide' an evaporative cooler having means for readily installing it in window openings having a variety of window supporting structures therein. l

`./ftnother object of the' invention is to provide an. evaporative coolerv having, me'answhich provide secure suppo'rtl of an evaporative cooler'in a window opening which isequippedwith eithermet'al or wooden. sash structures.

Another ohj'ect of the invention is' to provide a clip means for securing' and supporting an evaporativeco'oler duct"` in a' window opening in' connection with either wooden or metal window sash'.

Another obect of the invention ist to provide an evapcreative cooler having. a very' simple muilion modeling duet which is provided with an' external weather proof shield.

Another object of the invention' isi to provide novel remote meansfor an evaporative cooler" which is mounted in a window opening, wh'ere'hya motor'switch and water valve inthe evaporative cooler may he'vreadily and easily controlled from the insideofv the window opening in which the" cooler is installed;

Another ohje'ct' of 'the' invention is" tor provide a novel louver" structure which' ist provided with an oir-sot portion adapted to straddie ay cooler' controlI rodi when the louver strnctnre i's pivoted, for directing the air passing thoreover at various angles! desired.V i

Another object of the invention'. ifs to provide an evaporative' cooler output duct structure which serves as a meansl for mounting the cooler"within` ai window opening and'` also' serves as amounting for a louver gri-lil, on: the insideof the room" inwardly' of windowA supporting structure? int the window opening. i i

Another object of the invention is to provide an evap- N United States Patent O Mice ings.

2,789,494 `Ponentes Apr. z3, 1957 Orative cooler and means for installing the same in window openings which provides for very neat and simple cooler installations in window openings havlng various window supporting structures, whereby the economy of` A still further object of the invention is to provide a i louver structure having a resilient portion which exerts `force longitudinally of the louver, whereby it may be installed between two wall structures so that the resilient structure tends to extend the length of the louver between the walls thereby holding it securely in any of several angularly adjusted positions as desired.

Further objects and advantages of the invention may beapparent from the followingspecification, appended claims and accompanying drawings in which:

Fig. ly is a fragmentary perspective view showing an evaporative cooler and means for installing the same in a window Opening. having steel. sash and vertical mullion structures therein.

Fig. 2 is a vertical sectional view of a` building wall and steel window frame structure showing anI evaporative cooler installed therein according tothe present inven` rod' extending from the interior of the window opening to a control element in the cooler `outside the building in which the window opening exists.

Fig. 5 is an' enlarged fragmentarysectional view of the cooler installation means and louver grill support structure adjacent to the window sill wherein steel sash is installed.

Fig. 6 is a perspective view of an evaporative cooler and means for installing the same in connection with wooden sash and sill structures within' a window opening; and

Fig. 7 is an enlarged fragmentary vertical sectional` view thrt'aughA the wooden sash and sill structure as shown in Fig. 6 of the drawings and illustrating the details of the cooler installation means;

Similar characters of reference refer to similar parts and portions throughout they several viewstof the drawing.

With reference to Fig. l. of theclrawing, itl will be seen that the present invention relates to the installation of an evaporative cooler It@ within aL window opening wherein steel` sash il is present. The steel sash 1li is quite often installed in Window openings within concrete blockwall structures. For purposes of illustration a concrete bloei; wall l2 is illustrated in Fig. l of the drawings. This wa-ll` it at the lowermost portion of the window opening is provided withl a sill 13 on which a Z section frame' element 14 is-.positioned as shown best inr Fig. 5' of thei'draw- The steel. sash or windev.' frame structure as shown iny Fig. l of the drawing is also provided with a vertical mullion element 16 which is shown in section in Fig; 3 of the drawing. It will: be; noted that' this mull'ionf eleframe element 14 and a horizontal sash frame element 17. The space between these horizontal frame elements i directly above thesill13 varies in accordance with the number of lights or window panes within a standard sized window opening. Thus, a variety of steel sash exists in various building structures whereby different spacing of the horizontal frame elements and 17 poses a problem of installation which has been readily met by the present means for installing evaporative coolers in window openings. As shown in Fig. 2 of the drawing it will be seen that the evaporative cooler 10 is provided with an output duct 18 which is adapted to deliver cool air to the interior of the room inwardly of the frame elements 14 and 17. The duct 18 is provided with an upwardly directed flange 19 which extends a considerable distance above the upper horizontal surface thereof. This tlange 19 engages the inner side of the horizontal trarne element 17 of the steel sash and due to the generous extension of the flange 19 above the upper wall of the duct 18 it is capable of engagingthe horizontal frame element 17 even though its vertical spacing from the sill frame element 14 may vary an inch or two. The duct 18 is provided. with a lower wall 20 which is supported by stepped clips 21 engaging the outer surfaces of the Z-shaped window frame element 14. This stepped clip 21 is bolted to a downwardly extending ange portion 22 which is integral with the lower wall 20 of the duct 1S. The stepped clip 21 and ange 22 are clamped together by bolts 23 which cause the upwardly extending leg 24 of the Z-shaped window element 14 to be firmly clamped between a step portion of the clip 21 and the outer side of the ange 22. The stepped clips are provided with a plurality of stepped portions 25 which provide for horizontal and vertical engagement of the Z-shaped window frame element 14 at its outer surfaces and upper side. The upper horizontal portion 26 of this stepped clip engages the lower wall 20 of the duct 18 and provides a secure support therefor. The lowermost edge portion of the liange 22 is provided with a channel portion 27 in which a flange 28 of the grill frame 29 is supported. This grill frame 29 as shown in Fig. 2 of the drawings is provided with a tab 30 near its upper portion which is fixed by means of a screw 31 to the upwardly extending ange 19 which is integral with the upper wall of the duct 18. The grill frame 29 is provided with axially vertically mounted louvers 32 which are adjustable as desired for directing air delivered by the cooler to accommodate certain cooling requirements within a room inwardly of the grill frame 29. As shown in Fig. 1 of the drawings, the axially vertical louvers 32 are slightly curved in cross-section and are arranged to direct air in a slightly diverging relation at opposite sides of the mullion 16 which, as shown in Fig. 3 of the drawings, is straddled by a bifurcated portion 33 of the duct 18. Bifurcation of the duct 18 to permit straddling of the mullion 16 provides two separate duct portions 34 and 35 which deliver air through the axially vertical louvers 32. Rearwardly of these louvers 32 are horizontal louvers 36 which are disposed in each of the duct branch portions 34 and 35 of the main duct 18. Thel louvers 36 are axially horij zontally adjustable and as shown in Fig. 4 of the drawings are provided with integral projecting bearing portions 37 and 38 at their opposite ends. These projections engage openings 39 and 40, respectively, in the walls of the branch duct portions 34 and 35. These louvers 36 are each provided with a resilient U-shaped section 41 near one end thereof which is stressed when the bearing portions 37 and 38 at opposite ends of the louver are positioned between the confining duct walls which are normally closer together than the free length of the louver. Thus, the resilient tendency of the U-shaped portion 41 of each of the louvers 36 is to extend the over-all length of the louver whereby it, when confined between the walls of the duct, securely holds itself in certain adjusted position as desired. In addition, the U-shaped portion 41 is arranged to bypass or extend around a control rod 42 even though the plane of the louver adjacent thereto may be adjusted at various angles -as indicated by dash lines in Fig. 2 of the drawings. The resilient structure in these louvers v36 provides for a very simple means for maintaining them in certain adjusted position and for preventing the louvers from rattling or fluttering when subjected to ow thereabout.

It will be noted that the rod 42 is provided with a control knob 43 adapted for manual adjustment or rotation of the rod 42 which is connected to a switch or a Valve 44 which is part of the evaporative cooler control equipment. Evaporative coolers require water and electrical power to operate them, therefore the. manual control knob 43 in connection with the rod 42 may be connected to either a switch or valve while another control knob 45 is connected to a rod similar to the rod 42 and may also be connected to either a switch or valve as desired. Thus, the two rods in connection with the knobs 43 and 45 provide for control of the electrical motor which drives the fan of the evaporative cooler and also provide for control of the valve which conducts water to the pads of the cooler. These rods are provided with axially removable couplings 42a located between the control knobs and the cooler. These couplings facilitate installation of therods 42.

In order to render the window opening weather proof around the duct 18 at the location wherein it projects through the window frame, plates 46 and 47 are secured between thev frame elements 14 and 17 adjacent opposite ends of the grill frame 29. An external rain shield 48 is secured to the upper side of the duct'18 to cover the opening atthe transition of the duct portions 34 and 35 which straddle the mullion 16. The shield 48 is provided with rubber gaskets which engage the duct 18 and the vhorizontal window frame element 17. Thus, rain cannot reach the inside of the window opening between the duct portions 34 and 35 which straddle the mullion 16.

Installation of the evaporative cooler in accordance with the present invention in a window opening containing steel sash is substantially as follows:

`It is necessary to tilt the cooler 10 outwardly from the wall 12 at its lower portion whereupon the duct 18 is declined downwardly from the cooler 10 which permits the upper edge of the ange 19 to iirst be inserted beneath the sash frame element 17. The flange 19 is then moved upwardly on the inside of the sash frame 17 until the channel portion 27 integral with the lower wall 20 of the duct 18 may be moved inwardly over the upper edge of the Z-shaped frame 14. The stepped clips are then installed by inserting the bolts 23 which clamp the same into engagement with the frame member 14, as hereinbefore described. It will be noted that the weight of the cooler then tends to exert an inward force on the stepped clips 21 and an outward force on the flange 19 which bears on the inner side of the sash frame element 17. The cooler 10 near its lower corners is provided with bearing arms 49 and 50 which engage the outer side S1 of the wall 12. These arms 49 are constructed of rods and have enlarged portions 52 which bear against the outer side 51 of the wall 12 providing a very secure support for the lower end of the cooler 10 which tends to pivot inwardly toward the wall 12 when supported in the window frame structure as shown in Fig. 2 of the drawings. The arms 49 and 50 are provided with screw-threaded portions 53 mounted in brackets 54 which are fixed to the cooler near its lower corners. The screwthreaded portion of the arms 49 and 50 are engaged by nuts which abut the brackets 54 and permit spacing adjustment of the cooler 10 relative to the wall 12.

Attention is called to Figs. 6 and 7 of the drawings, which illustrate the present evaporative cooler and means for mounting the same in a window opening wherein l engaged uyinannge 291er fhea'et 18;"z Ho a ing installatienl;v f, the c'oc'ilerltlieU conventional wooden sash ,55"may be raised which, permits the cooler to be j which` said duct extends.4

` arsenaal inserted directly intothe window openingv The channel 27 isabutted to theedge 5,6 of the sash. stop plates 57 `and the step clips are iixedto the wooden sill 58 by ineansof4 screwsSSl.` The portions 26 of thestep clips -`l 21 engage the outer portion of` the `channel y27 andv hold thesame"securely in` engagement with the edge3 of the jplate" .,571 `while thesestep clips.` 21 `also engage the lower wall 2.0` of rthe du'ctwl forvertically `supporting the same4 in` window opening. According to the present invention, the kit for installing the levaporative cooler includingfthe clips.,214 isireadily` useful-.andvery simply applied to the structures of both steel and wooden sashv 'jin conventional window openingswithout makingl altera.-

a tions in'` any.` of the window panesupporting structures;

Though `we have shown anddescribedjian evaporative coolenand' meansfor installing thesamein window openings, we. do not 4,wishtobe limited/td the particular con.- Vstructiondisclosed butV desire to emphasize/the fact that` Y the",iinzention` may be limited only byat juastinterpreta tion of the followingclaims.`

wWe claim: l 1,. In an evaporative cooler `and means: for installing` thesame in window opening,` an` evaporative cooler, a`

` duct extending, therefrom,` flange means-at theA end of. `the duct engageable with frame structure, clip means sup..-

portable on window sill structure for supporting the lowermost portion jof said ductythe flange structure` at the y upper portionl of i"said" duct engageable the inner `side of Windnv sar`sh= structured, and'vr thelower portion j of said evaporative cooler having arms engageable with the,` outer `side ofA a wall below a.windowopenin`g through `2.` in antevaporative cooler and means forli installing thesa'mein window openings, `an evaporative` cooler, a

duct extending therefrom, 'flange means at theend. of

e p theduct engageable with window `frame structure, clip i means supportable on window sill structure for supporting the lowermost portion of` said duct, the flange structure l at `the upper portion of said duct engageable with the inner side of window sash structures, andthe lower por- `tion of said evaporative cooler having arms engageable with the outer side of a wall below a window opening "through which` said duct extends, said duct biturcated andadapted to extend around a vertically disposed mullion structure in said window opening.`

3. In an evaporative' cooler and means for installing the sarneinwindow openings, an evaporative cooler, av

duct extending therefrom, flange meansA at the end of ythe duct engageable with window frame structure, clip means engageable with window sill structure for supporting the lowerrnost portion of said duct, the tlange structure at the upperf portion of said duct engageable with the inner side of window sash structures, the lower portion `of `said evaporative cooler having arms engageable :with the `outens'i'de of a wall below a window opening through which `said duct extends, said duct bifurcated and 't adaptedto-extend through'a vertically disposed mullion structure in said window opening, said ange structure on t removably secured to'said ange. t

j 4.ln an evaporative cooler and means'for installing s the same in a window opening, an evaporative cooler, `a

. "duct extending therefrom and projectable through a win- `dow opening,`said` duct` at its lower wall portion having .a downwardly extending ange adapted to be positioned inwardly of `a window sill supported frame element and a clip meansbolted to said ange and clamped against ,the bottomfgof said duct and engageable with the outer side of saidsill supported frame' element for clamping said duct securely in connection therewith 5. In an evaporative cooler and means for installir'lg` the saine in a window opening, an evaporative cooler, a' duct extendingl therefrom and projectable through a wind'ow opening, said duct at its lower wall portion having a downwardly extending flange adapted tobe positioned' inwardly of a window sill supported frame element and' a` clip means boltedy to said liange and clamped against the bottom of said duct and engageable with the outer' side. of said sill supported frame element for clamping saidl duct securely in connection therewith, said duct having a Harige element extending. upwardly from its upper wall' portion and .adapted to engage the inner side of a horizontally disposed window frame element.

6. In an evaporative cooler and means for installing the same'in a window opening, an evaporative cooler, a duct extending therefrom andprojectable through a window opening, said duct at its lower wall portion having a downwardly extending liange adapted to be positioned inwardly of a window sill supported frame element and a clip means bolted to said flange and clamped against the bottom of said'duct and engageable with the outer side of said sill supported" frame element for clamping said duct securely in connection therewith, said duct having a flange, element extending upwardly from its upper wall portion and adapted to engage the inner side of a horizontally disposed window sash frame element said duct bifurcated` and adapted to straddle a vertical mullion extending between said sill supported iframe element and sadhorizontally disposed window sash frame element.

. 7. In an evaporative cooler andmeansfor installing the same in a` window openingan evaporative cooler, a duct extending therefrom and projectable through a window opening, said duct at its lower wall portion having a downwardly extending flange adapted t'o be positioned inwardly' of a window sill supported frame element and' a, clip meansbolted to said ilange and clamped against the `bottoni o-f'said duct and engageable with the louter side ofsaid sill supported frame element forv clamping said duct securely in connection therewith, said duct having a flange element extending upwardly from its upper wall portion and adapted to engage the inner side of a horizontallytdisposed window sash frame element, said duct bifurcated and adapted to straddle a vertical niullion extending between said sill supported frame element and said horizontally disposed window sash frame element, said flanges of said duct having means for supporting a grill frame inwardly of the window opening and a louver supporting grill frame fixed to said flange elements and abridging the bifurcated portions of said duct.

8. In an evaporative cooler and means for installing the same in a window opening, an evaporative cooler, a duct extending therefrom and projectable through a window opening, said duct at its lower wall portion having a downwardly extending flange adapted to be positioned `inwardly of a window sill supported frame element and ment and said horizontally disposed window sash frame element, said flange of said duct having means for supporting a grill frame inwardly of the window opening and a louver supporting grill frame fixed to said flange elements and abridging the bifurcated portions of said duct, a shield positioned over the transition of said bifurcated portion of said duct and disposed outwardly of said horizontally disposed sash element and having gasket means engaging the same and the upper side of said duct ..7 to prevent elements from entering rthe transition `of the duct bifurcation.

9. In a evaporative cooler and means for installing the same in a window opening, an evaporative cooler having a duct extendable into a window opening, axially horizontal louver means adjustably mounted in said duct, said louver means having a U-shaped oiset portion of resilient character tending to force opposite ends of said louver means into frictional engagement with the Walls of said duct and control rod means extending from the inner end portions of said duct into said cooler in alignment with said oset portions of said louvers, whereby said louvers may be angularly adjustable about saidrod means without interfering with the same.

10. In a louver structure, a pair of spaced walls, a louver pivoted therebetween and having a resilient U- shaped portion intermediate its ends tending to extend the length thereof, whereby opposite ends of the louver are frictionally engaged with said walls for holding the louverin any one of a plurality of `pivotally adjusted positions with respect to said walls. n

11. In an evaporative cooler, and means for installing the same in a window opening, an evaporative cooler, a duct extending therefrom and projectable through a window opening, a louver grill on the inner endvof said duct and a pair of remote control rod means extending from said grill through said duct and into said cooler a fan switch operable by one of said rods, and a water valve operable by the other of said rods whereby said rods may be manually adjusted for remotely controlling said cooler.

12. In an evaporative cooler, and means for installing the same in a window opening, an evaporative cooler, a

duct extending therefrom and projectable through a win-v dow opening, a louver grill on the inner end of said duct and a pair of remote control rod means extending from said grill through said duct and into said coolerA a fan switch operable by one of said rods, and a water valve operable by the other of said rods whereby said rods may be manually adjusted for remotely controlling said cooler,

areas@ f 8 Said rods, having raxially removableA connectors between said louver grillj and said cooler control means.v

K13.' I n la cooler and rn'eansfor installing thev same, the

combinationof, awall having a window opening thereini, a cooler disposed to be installedoutside a window opening; a Window frame in said windowopening and having a horizontal element therein; a duct connected to said atthe inner side of said vertical window frame mullion and within anoom inwardly of the window frame. v

1'4. In a cooler and means for installing the same in a window opening', the combination of; a cooler; an air delivery duct extending therefrom, said duct, at its opposite end from said cooler, bifurcated to form an open vertically disposed space straddled by separate duct portions, said vertically disposed yspace adapted lto receive a vertical mullion of a windowy frame when said duct is projected, from the outside of a building, into a window opening therein; and a grill frame connected to said separate ductportions and abridging said open space at the normally inner side of a mullion when received in said open spacerfl References Cited in the file of lthis patent j Y j UNrrED STATES PATENTS l 2524,310 Cohen Aug. 14, 1894 2,299,527 Cody oct. 2o, 1942A 2,623,052 cir'a Feb. 1o, 1953 2,667,765 Harris Feb."2, 1954r Deering Oct. 4, 1955 

